Home / 30,891,139.20-42,478,603.20-26,809,672.32

Finding the Fourth Proportional to 30,891,139.20, 42,478,603.20 and 26,809,672.32

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Solution

The fourth proportional to 30,891,139.20, 42,478,603.20 and 26,809,672.32 is: 36,866,151.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891,139.20 : 42,478,603.20 = 26,809,672.32 : x
  2. Step 2: Convert to fraction form
    30,891,139.20/42,478,603.20 = 26,809,672.32/x
  3. Step 3: Cross multiply
    30,891,139.20x = 42,478,603.20 × 26,809,672.32
  4. Step 4: Simplify right side
    30,891,139.20x = 1,138,837,432,403,303.50
  5. Step 5: Solve for x
    x = 1,138,837,432,403,303.50/30,891,139.20
  6. Step 6: Final answer
    x = 36,866,151.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.